{
  "resourceType": "StructureDefinition",
  "url": "http://example.org/fhir/StructureDefinition/NationalityExtension",
  "name": "NationalityExtension",
  "status": "active",
  "fhirVersion": "4.0.1",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Patient"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Nationality",
        "definition": "Defines the nationality of a patient",
        "max": "1"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://example.org/fhir/StructureDefinition/NationalityExtension"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Nationality",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "extensible",
          "description": "Nationality"
        }
      }
    ]
  }
}